Winding machine



Sept. R2, 1933 J. BRENZINGER WINDING MACHINE Filed May 16, 1950 ag fiw Sept 1933= J. BRENZINGER 1,926,681

WINDING MACHINE Filed May 16. 1930 3 Sheets-Sheet 2 anus wide:

p 1933 J. BRENZINGER 1,926,01

WINDING MACHINE Filed. May 16, 1930 3 Sheets-Sheet 3 Juliuo firen W Patented Sept. l2, i933 UWHTE STATES retain earner or ies necticut Application May it, 1934i. Serial No. 452,890

3 (Claims.

This invention relates generally to winding machines, and especially of the character employed in the winding of rayon.

in the accompanying drawings the invention is disclosed in a concrete and preferred form in which Fig. l is a top plan view of a device embodying the invention;

Fig. 2 is a View of the parts disclosed in Fig. 1 shown in end elevation and partly broken away and in section;

Fig. 3 is a view similar to Fig. 2 with the thread guide in the extreme shifted position in one direction and at both ends of the main reciprocating motion; and

Fig. 4. is a view similar to Figs. 2 and 3 but with the thread guide in its other extreme shifted position also at both ends of the main reciproeating motion. i

1 indicates a rotatable spool associated with which is a thread guide 2. The general operation of machines of this character is that the newly formed thread is led from the setting bath (not shown) through the thread guide to the spool. The thread guide moves back and forth longitudinally over the spool and the latter rotates so as to wind the thread layer upon layer on the spool. For reasons which need not be entered into here, the cylindrical body of thread, 34? 3, thus formed should be built up with taper ends it. Various complicated devices have heretofore been employed to obtain this effect-and the main object and feature of this invention is to sinc pliiy the means for accomplishing this purpose.

Either or both the spool and the thread guide may be given a main reciprocating motion one with respect to the other. in the present in stance, however, there is employed a thread guide carrier 5 which slides in hearings d, and this carrier is here shown as being provided with a rack "l engaged by pinion c, which latter, in turn, is oscillated by another pinion 9 engaged by racl: lo carrying cam rolls ii actuated by heart-cam l2. It will he understood from this that rotation oi cam 12 effects reciprocation of carrier 5, the strokes oi said reciprocating movement being cl uniform length. (ionventional means such as gears 13 and id are indicated to rotate the spool, and it will be understood that the gear ratio is such that the spool malres a number revolu tions for each reciprocation oi the carrier.

Thread guide 2 mounted on pivot l5 oi the carrier, and also mounted on said carrier in bearing to, and reciprocating therewith, is a rotatable ratchet it. it hidicotes stationary Zll pawl mounted independently of the carrier. It will be seen that when the carrier comes to the end of its stroke in one direction (Fig. 3) pawl 18 will engage the ratchet and turn it a distance of one tooth. 19 is a stop pawl to retain the ratchet in the position to which it has been moved. Ratchet 1'7 carries a crank 20 and from this crank extends a connection 21 that reaches to arm 22 of the thread guide and with which arm said connection has an adjustable and pivotal joint 23. It will now be understood that, as carrier 5 is reciprocated, ratchet 1'7 is turned one tooth to each complete stroke thereby shifting the crank. The movement of the crank is transmitted to the thread guide, through the connections described, and its position is shifted slightly in one direction. This continues during a plurality of reciprocations of the carrier until the efiect of the crank is reversed when the thread guide begins to be shifted in the opposite direction and this likewise continues for a plurality of reciprocations of the carrier. In Fig. 3 the thread guide is shown shifted to its extreme position in a right hand direction and is indicated at the end of the stroke of the carrier in both directions. In Fig. 4 the opposite effect is shown.

it will now be understood that, although the carrier is given a reciprocating motion having a uniform stroke, yet by shifting the position of the thread guide a variable action is introduced that builds up the cylindrical body with taper ends.

It will be obvious that a number of spools and thread guides may be employed and also that the arrangement may be in duplicate as shown.

I claim:

1. The combination of a thread guide and a rotatable spool to receive thread directed by said guide, a thread guide carrier, means to reciprocate the carrier to thereby wind a cylindrical body of thread on the spool, and means to shift the position of said thread guide on said carrier first progressively in one direction during a plurality oi the reciprocations and then progressively in the other direction during another plurality of reciprocations to thereby build up, with taper ends, said cylindrical body of thread.

2. The combination of a thread guide and a rotatable spool to receive thread directed by said guide, thread guide carrier, means to recipro- 1 a movement of uniform length of strokes, the carrier to thereby wind a cylindrical body of thread on the spool, and means to shift the position or said thread guide on said carrier first progressively in one direction during a plurality of the strokes and then progressively in the other direction during another plurality of strokes to thereby build up, with taper ends, said 5 cylindrical body of thread.

3. The combination of a reciprocating carrier, 2. thread guide pivotally mounted thereon, and means to efiect by the reciprocation of the car- JULIUS BRENZINGER. 

